[Orgmode] Re: Babel: help with tables and code blocks?

[Bart Bunting]

On Sun, 08 Aug 2010 15:34:02 -0400, Dan Davison <address@hidden> wrote:
Dan,

Thank you very much for that explanation! 

This makes the whole thing much clearer.

Do you know where the sbe call is documented in the manual?  I couldn't
find it my self.

Thanks again.

Bart


> Bart Bunting <address@hidden> writes:
> 
> > Hi everyone,
> >
> > I'm trying to get my head around babel and getting info back into a
> > table.
> >
> > The below org file tracks expenses and the perl code simply sums them
> > up.
> >
> > The code is working but I now want to get the total back into another 
> > table.  What I have is not
> > working can someone tell me what I'm doing wrong here?
> >
> > Cheers
> >
> > Bart
> >
> > * Expenses
> >
> > #+tblname: expenses
> > |------------+-----------------------------------+--------|
> > |       Date | What                              | Amount |
> > |------------+-----------------------------------+--------|
> > | 2010-07-26 | Breakfast                         |      5 |
> > | 2010-07-26 | groceries                         |    8.5 |
> > | 2010-07-26 | butchers - chicken                |    5.5 |
> > | 2010-07-27 | umart - video card, kvm, speakers |    136 |
> >
> > * Code
> >
> > #+srcname: totals 
> > #+begin_src perl  :var details=expenses[1:-1]
> >   my $total = 0;
> >   foreach my $row  (@$details) {
> >       $total += @$row[2];
> >   }
> >   
> > return $total;
> > #+end_src
> >
> > #+results: totals
> > : 155
> >
> >
> >
> > * Totals
> >
> > | Total | #ERROR |
> >   #+TBLFM: $2=#+call: totals(details=expenses)
> 
> Hi Bart,
> 
> You've mixed up #+call and sbe there. sbe is what you want to use in a
> table formula; #+call and #+lob are for standalone lines. Here are a few
> examples of different ways to do what you're doing. Hopefully they make
> things clear.
> 
> Dan
> 
> --8<---------------cut here---------------start------------->8---
> 
> * Totals
> ** Using a table formula
> 
> *** Relying on default argument to totals block
> | Total | 155 |
> #+TBLFM: $2='(sbe "totals")
> 
> *** Providing argument explicitly
> 
> The dots are a bug. We'll fix it.
> 
> **** version 1
> | Total | 155... |
> #+TBLFM: $2='(sbe "totals(details=expenses[1:-1])")
> 
> **** version 2
> | Total | 155... |
> #+TBLFM: $2='(sbe "totals" (details "expenses[1:-1]"))
> 
> 
> ** Using call/lob
> 
> #+call and #+lob are synonyms
> 
> *** Relying on default argument to totals block
> 
> #+call: totals()
> 
> #+results: totals()
> : 155
> 
> or equivalently (it outputs into the same results block):
> 
> #+lob: totals()
> 
> *** Providing argument explicitly
> #+call: totals(details=expenses[1:-1])
> 
> #+results: totals(details=expenses[1:-1])
> : 155
> 
> --8<---------------cut here---------------end--------------->8---
> 
> 
> 
> 
> >
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-- 

Bart Bunting

URSYS Pty. Ltd                                                             
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